Device for automatically stopping gasolene-engines.



T. E. JOHNSON. DEVICE FOR AUTOMATICALLY STOPPING GASOLENE BNGINES.

APPLICATION FILED SEPT. 21, 1912.

Patented Sept. 30, 1913.

COLUMBIA PLANOURAPH 60.,WA5H1NOTON, D c.

'roM ELMER JoHNsoiI, or NORTHWOOD, IOWA.

DEVICE non AUTOMATICALLY STOPPING eAsoLENE-mverivEs.

Specification of Letters Patent. 7 Patented Sept. 30, 1913.

Application filed September 21, 1912. Serial No. 721,569.

State of Iowa, have invented a new and useful Device for Automatically Stopping Gasolene-Engines; and I do hereby declare the following .to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a new and useful device for stopping a gasolene engine automatically at a pre-determined moment.

As one of the objects of the invention, it is the aim to provide a device of this design including means, whereby the gasolene engine may be stopped at various pro-determined moments, thereby increasing or decreasing the length of time in which the engine is run.

As a further object of the invention, an apparatus of this nature is provided, in which desirable and practical features of construction are involved.

In'the drawings there are disclosed certain features of construction, but 'in practical fields these features may necessitate alterations, to which'the patentee is entitled, provided the alterations are comprehended within the scope of what is claimed. 7

The invention comprises further features and combination of parts, ashereinafter set forth, shown in the drawings and claimed.

In the drawings :Figure 1 is a view of the improved automatic device, showing the same as applied to a portion of a gasolene engine. Fig. 2 is a view of the device showing the operative parts after having been operated. Fig. 3 is an enlarged detail view.

Referring more particularly to the drawings 1 designates a portion of a gasolene engine, having the usual switch member 2 for stopping the spark mechanism, in order to close down the engine, whereas 3 denotes a tank adapted to contain water. Secured in the bottom of the tank is an arm 4, to which is pivoted at 5 a lever 6, to one end of which a wire rod 7 is connected, the upper portion of which is guided in a guide 8. The other end of the lever 6 has connected to it a rod 9, which in turn connects to a lever 10, which is pivoted at 11 in a bracket arm 12. The end '13 of the lever 10 has connected to it a cord or cable 14, which passes under a pulley 15, secured to the base of the tank.

I The end 16 of the cord or cable is connected to the switch member 2; Adjustable longitudinally upon the wire rod 7 is a stop member 17, having a cushioning device 18, with which the float 19 contacts as the water in the tank rises to the predetermined height. This fioat 19 moves vertically upon the wire rod 7. This tank is designed to contain various heights of water, and is supplied from any suitable source (not shown) through the pipe 20, which is provided with a valve 21, the stem of which is supplied with a gear 22 meshing with a gear 23, which moves with the pivot pin 11 and the lever 10. Then the lever 10 oscillates the gear 23 aotuates the gear 22 so as to close the valve 21, at the same time the float 19, upon contacting with the stop 17 actuates the wire rod 7, which in turn will pull the cord 1& through the medium of the levers 6 and 10, so as to stop the sparking mechanism and the flow of the water simultaneously. If it is desired to run the engine eight hours a day, the stop 17 should be set on the wire rod 7 accordingly, and the water allowed to flow in the tank at a rate of speed suflicient to raise the float to contact-with the stop in that length of time. However, if it is desired that the engine should run ten hours a day, the water may flowat the same rate of speed, but the stop should be raised higher on the wire rod. In this manner the length of gimefor running the engine may be var1e From the foregoing it will be noted there has been devised a simple and eficient mechanism for automatically stopping the gasolene engine at a pre-determined moment, and one which has been found practical.

The invention having been set forth, what is claimed as new and useful is 1. In combination with a machine stopping mechanism and a fluid tank having an inflow pipe provided with a valve; a lever adapted to actuate the valve and the machine stopping mechanism, a second lever pivoted in the bottom of the tank having a rod connection with the first lever, a wire rod connected to one end of the lever in the bottom of the tank, a guide for the upper-portion of said wire rod, a stop having cushioning ping mechanism and a fluid tank having an inflow pipe provided with a valve; a bracket arm on said tank, a lever pivoted to the bracket arm having means to operate sa d valve and provided wlth connecting means tom of the tank, a guide for the upper end of the wire rod, a stop adjustably mounted on the wire rod and provided with a cushioning device, and a float vertically movable Copies of this patent may be obtained for on the wire rodadapted tocontact with the cushioning device when the fluid rises to the' desired height, whereby the levers-may be oscillated, which in turn will operate the valve and the stopping mechanism, to close the valve and stop the engine. Y

In testimony'whereof I have name to this specification in the two subscribing witnesses.

' TOM ELMER'JOHNTSON. Witnesses:

MARTIN T. JOHNSON, ANDREW J. MASTROM.

signed my 20 presence of five cents each, by addressing the Commissioner of Patents. Washington, D. G. r 

